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Vehicle applied alternate current generator

A technology for alternators and vehicles, applied in asynchronous induction motors, electromechanical devices, electrical components, etc., can solve the problems of low power generation efficiency, small output power, large size, etc., achieve high power generation efficiency, improve output power, mechanical strong effect

Pending Publication Date: 2017-06-20
SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above, the present invention provides a vehicle alternator to solve the problems of low power generation efficiency, small output power, large volume, and large wind noise of existing alternators

Method used

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Embodiment Construction

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] Such as Figure 1-Figure 10 As shown, the present embodiment provides a preferred automotive alternator, which includes a front end cover 11, a rear end cover 12, and a rotor and a stator fixed between the front end cover 11 and the rear end cover 12, wherein The rotor is fixed on the rotor shaft 24 and the stator is mounted on the outside of t...

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Abstract

The invention discloses a vehicle applied alternate current generator which relates to the power generator technology field. The vehicle applied alternate current generator comprises a front end cover, a back end cover and a rotor and a stator fixedly arranged between the front end cover and the back end cover. The stator comprises a front pole claw and a back pole claw that are arranged in a cross manner; the stator comprises a stator iron core and stator coils wrapped on the stator iron core. The ratio of the distance L2 from the front end face of the stator iron core to the inner side of the front pole claw to the thickness L1 of the front pole claw bottom plate is equal to or smaller than 0.19; the ratio of the distance Lp from the front end face of the stator iron core to the height of the stator core L3 is equal to or greater than 0.91. According to the invention, the induced electromotive force of the power generator is increased; the output power of the power generator is improved; the electric energy conversion efficiency is increased. Therefore, under the same diameter, the alternate current generator possesses advantageous power density and facilitates the reduction in the size of the power generator.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a vehicle alternator. Background technique [0002] In a car, the function of the alternator is to convert part of the mechanical energy of the engine into electrical energy, so as to supply power to the car's electrical equipment or battery. Existing automotive alternators generally include end covers, rotors, stators, pulleys, rectifier bridges and other components. , It is easy to cause large copper loss, high noise, and serious magnetic flux leakage of the generator, which greatly reduces the energy conversion rate and power generation of the generator, and affects the output performance of the generator. Based on the above reasons, the existing automotive alternator generally adopts a large-scale structural design to ensure the electricity demand of the automobile. Alternators are increasingly unable to meet the needs of users. Contents of the invention [0003] Base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/42H02K1/24H02K9/06
CPCH02K1/243H02K9/06H02K17/42H02K2213/03
Inventor 洪坤松吴斌孙韬黄晖锋石宇杰胡山凤孙菲吴庆梁徐晓玲徐一斐
Owner SHANGHAI VALEO AUTOMOTIVE ELECTRICAL SYST
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